import React from "react";
import styles from "./index.less";
import { Form, Input, Button, Select } from "antd";

const { Option } = Select;

const layout = {
  labelCol: { span: 8 },
  wrapperCol: { span: 16 },
};
const tailLayout = {
  wrapperCol: { offset: 8, span: 16 },
};

class Demo extends React.Component {
  formRef = React.createRef();

  onGenderChange = (value) => {
    this.formRef.current.setFieldsValue({
      note: `Hi, ${value === "male" ? "man" : "lady"}!`,
    });
  };

  onFinish = (values) => {
    console.log(values);
  };

  onReset = () => {
    this.formRef.current.resetFields();
  };

  onFill = () => {
    this.formRef.current.setFieldsValue({
      note: "Hello world!",
      gender: "male",
    });
  };

  render() {
    return (
      <Form
        {...layout}
        ref={this.formRef}
        name="control-ref"
        onFinish={this.onFinish}
      >
        <Form.Item name="note" label="Note" rules={[{ required: true }]}>
          <Input />
        </Form.Item>
        <Form.Item name="gender" label="Gender" rules={[{ required: true }]}>
          <Select
            placeholder="Select a option and change input text above"
            onChange={this.onGenderChange}
            allowClear
          >
            <Option value="male">male</Option>
            <Option value="female">female</Option>
            <Option value="other">other</Option>
          </Select>
        </Form.Item>
        <Form.Item
          noStyle
          shouldUpdate={(prevValues, currentValues) =>
            prevValues.gender !== currentValues.gender
          }
        >
          {({ getFieldValue }) => {
            return getFieldValue("gender") === "other" ? (
              <Form.Item
                name="customizeGender"
                label="Customize Gender"
                rules={[{ required: true }]}
              >
                <Input />
              </Form.Item>
            ) : null;
          }}
        </Form.Item>
        <Form.Item {...tailLayout}>
          <Button type="primary" htmlType="submit">
            Submit
          </Button>
          <Button htmlType="button" onClick={this.onReset}>
            Reset
          </Button>
          <Button type="link" htmlType="button" onClick={this.onFill}>
            Fill form
          </Button>
        </Form.Item>
      </Form>
    );
  }
}

export default () => (
  <div className={styles.container}>
    <div id="components-form-demo-control-ref">
      <Demo />
    </div>
  </div>
);
